1. Department of Health Policy, National Center for Child Health and Development, Tokyo 157-0074, Japan
2. Department of Molecular Endocrinology and Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
3. Division of Maternal Medicine, Center for Maternal-Fetal, Neonatal, and Reproductive Medicine, National Center for Child Health and Development, Tokyo 157-0074, Japan
4. Department of Epidemiologic Research, Faculty of Nursing, Toho University, Tokyo 143-8540, Japan
5. Division of Diabetes, Metabolism and Endocrinology, Department of Medicine, Showa University School of Medicine, Tokyo 142-8666, Japan
6. Department of Molecular and Cellular Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
7. Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
8. Department of Obstetrics and Gynecology, National Hospital Organization Nagasaki Medical Center, Omura, Nagasaki 856-8562, Japan
9. Department of Obstetric Medicine, Osaka Women’s and Children’s Hospital, Izumi, Osaka 594-1101, Japan
10. Okayama City General Medical Center, Okayama 700-0962, Japan